Box-end-stapling machine.



' G. J. OLTSGH.

BOX END STAPLING MAGHINE.

nrmouxox FILED 11u29, 1911.

1,050,844, Patented .1311.211 1913.

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GEORGE J'. OllilsCH,y OF SOUTH BEND, INDIANA.

:Box-END-srArLING MACHINE. v

Specication of Letters Patent.

Patented J an. 21,1918.

Application tiled May 29, 1911.v Serial No. 630,013.

from the inner sides of the ends, the ends" being of thinner lumber thanthe cleats, and secure the ends against the inner sides of the endcleats of the blank by driving the staples through the ends into thecleats. In, driving the staples from the inner sides of the box, it hasbeen found in practice to be very advantageous in assembling and holdingthe box parts, and movingthe same during the stapling operation 'byhand, thatthe staples be driven in an upward direction.

The object of my invention is to provide a stapling machine in which thestaples are delivered to the driving means in. an inverted position,without the use of any movablev delivering mechanism, thus greatlysimplitying the structure and entirely abolishing the comparativelycomplex I:tuated mechanisms now employed in the art for that purpose.

In carrying out my invention I prefer to provide the machine with stapleforming means, although it is to be understood that the machine may bearranged to use ready formed staples without departing from the spiritof my invention, which relates primarily to the new and novel meansemployed :tor delivering the staples inverted to the driving means, andin connection with which any suitable staple forming or supplying meansmay be employed.

Referring to the drawings, in'which are shown the preferred embodimentof my invention-Figure 1 is a side elevation, partly in section, of thehead end of a stapling machine illustrating the invention. Fig. 2 is ahorizontal sectional view taken on the` line -m of Fig. 1.

lilhe machine head comprises the frame 1,

y regulation U-shaped form of a staple.

supported in the usual manner by a standard not shown), and upon whichstandard the requisite pulleys and cams are mounted for actuating,through the medium of suitable connections, th'e staple forming, stapledriving and wire feeding mechanisms, all of' which are arranged tooperate in their proper order. As such actuating means are old 1n theart and forming no material part lof the present invention, anillustration and description thereof is dispensed with, it be-` ingsufficient for a clear understanding of the present invention to knowthat any suitable devices may be employed for actuating the-stapleforming, staple driving and wire feed devices which are illustrated inthe drawings and described herein.l A plate 2,y

mounted in ides 3 and lt, to be reci rocated up an down, carries astaple drlver 5. The p1ate2 is reciprooated by a rocking lever 6, whichis pivotally connected With" the plate by a pin 7, which projectsthrough a slot 8 in the' vertical wall of tlie'frame, the

rocking lever and head beingdisposed on opposite sides of said wall.Secured to the lar shaped plate 9, having an extended arm 10 providedwith a central vertical slot 11, and an opening 12 intersecting saidslot and passing entirly through the arm, said opening being somewhatlarger than the staple guide 13, in' which the staple driver 5 isarranged to slide. An opening 14 is arranged in the plate 9 in alinementwith the opening 12, and Islotted in .its upper and lower sides, asindicated at 15 and 16, to form a die, throughwhich the wire isforced'by the staple forming plunger and bent into tlp plate 18 securedto the frame,.as by screws, and in spaced relation with y, the plate 9,is provided with openings 19 and 20, in alinement respectively with theopenings 14 and 17 in the plate 9, and through which open-` ings thestaple forming plunger, and a cutter member for severing the Wire intoproper lengths, reciprocate.

Fixedly secured between the opposite edges of the plates 9 and 18, is apin 2l,

.80, Iframe, as by means of screws, is an irregu' the upper end ofvwhich is tapered and provided with a central longitudinal bore. A curvedtubular guide 22, fixedly secured to the frame, adjoins said pin at itslower end, the lower end of the guide being disposed in line with awire-feed device, presently explained, so that the wire will be fedVthrough the guide and pin from'a horizontal to a vertical position, andin line to be operated upon byV the staple forming lunger and wirecutting'device. rlhe wire ceding device consists of a pair of serratedjaws 23, 23, tapered at their outer edges, and disposed between theconverging walls of a reciprocated block 25,V the serrated edges of thejaws being held in gripping relation with the wire, on the feed strokeof the block, by a spring 26, which forces the jaws toward `theconverging walls of the block. 0n the return stroke of the block, thejaws move toward the diverging ends of the walls against the tension ofthesprmg, and release their grip upon the wire, at which time the wireis held against retractive movement by a sharp edged nger 27, whichcontacts with the exposed wire through a cut-out portion in the guide,as shown, whereby any downward movement of the wire causes the finger tobind the wire against the wall of the guide, while permitting a freeupward movement of the wire without a binding action thereon. The block25 is actuated by a cam (not shown) so as to intermittently feed alength of wire, and at the proper time, to be formed into a staple in amanner lpresently explained.

Immediately after the proper length of wire has been fed in line to, beacted upon by the staple forming plunger and wire cutting device, thosemembers are actuated to erform their severalfunctions. The staple ormingplunger 28 is carried by a reciproeating head 29, which slides in guides30 and l3l secured to the frame, and which head also carries a pivotedfinger 32, nor- .mally pressed inwardly by a spring 33.

The free end ofthe linger is shouldered at 34, and engages the head of awire cutting member 36, having a cutting` edge 37 on an anglecorresponding with the upper` tapered end of the pin.21. The linger 32is provided with a laterally .projecting trip finger 38, which engagesa` cam block 39 when the linger has been moved forward a suilicientdistance for its end to sever the wire, and disengages the end oftheiinger A from the head end of the cutting member,

whereu on the latter,under the influence of the spring 40, is returnedto its normal position, while the finger 32 continues its stroke withthe head with which it is pivotally connected, its end sliding upon theplate 18, to

one side of thecutter member. A stop pin es 41 limits the movement ofthe cutter member in one direction, kand against which said member.

member normally rests, the end of the finger 32 being forced against theframe alter it passes the head end of the cutting meinber, and in linewith the latter, so that upc-n the next forward stroke, the end of thefinger will abut with the head end of the cu tting member, and theoperation above descrlbed repeated. Simultaneous with the severing ofthe wire, the end of the plunger 28 engages the severed partintermediate its ends Vand forcing the same through the slotted opening14, bends the wire into the U-shaped form of a staple. The stroke of theplunger continues until the Joints'of the staple have passed a strippingnger 112, pivotally connected to the frame, the free end of which israised by the staple contacting with the rounded under side of thelaterally projecting portion thereof, and drops by gravity as soon asthe staple has passed. the same, so that upon the return stroke of theplunger the staple ends will contact therewith and the staple will bestripped from the plunger.

As the staple is stripped from the plunger, it falls and slides down theinclined slot 11, its head end contacting with one pole o'f a magnet,the poles 44: and 45 of which are exposed on one side through the wallof the vertical staple guide 13, while the magnetic attraction of theopposite pole upon the upper leg of the staple will cause the same totilt and be held by magnetic attraction, with the points thereofdirectly upwardly, and properly disposed within the guide 13 to be actedupon by the driving Even though the magnet used should not be strongenough to attract the staple to a vertical position, the slightestupward movement of the staple driver will, owing to the resistance ofthe magnet against moving the staple, whichis in con'- tact therewith atone side thereof, cause the same to swing into a vertical position, andin consequence of which a permanent magnet may be advantageously used.vThe magnet illustrated in the drawings is of the horseshoe type, withits ends bent so as to fit around the nose of the machine frame, and itsmajor portion seated in a cavity in the side of the frame, asrepresented by dotted lines in Fig. 2. It is obvious that anelectromagnet or any other suitable type of magnet may be used for thepurpose herein described.

Having thus described my invention, what is claimed is- 1. In a staplingmachine, the combination with mechanism for driving a sta le in anupward direction, of means for' elivering the staple by gravity to thedriving mechanism in a position out of the vertical, and magnetic meansfor attracting the staple to a'vertical position and holding the same tobe acted upon by the driving mechanism.

.Slo

,25. posltion, of means for driving the staple upstaple will contactwith the magnet and the 2. Ina sta ling machine, the combinationwithstaple ormlng and upwardly driving mechanism, of inclined means forguiding and delivering the staple from the forming to the drivingmechanism by gravity, and magnetic means for attracting the staple froman inclined to a vertical position with the points uppermost, andholding the same in the path of the driving mechanism.

3. In a sta ling machine, the combination with means or delivering thestaple headend foremost, of means for driving the staple upwardly, avertical guide for the staple and the driving means, an inclined guidefor receiving and delivering the staple to the vertical guide bygravity, and a magnet disposedl opposite the lower end of the inclinedguide, whereby the head-end of the staple will strike the magnet at anangle and the points thereof will be attracted upwrdyl and heldindriving position.

chine, the combination withl a staple former adapted to deliver thestaple in 'a horizontal wardly, a verticalguide for the staple and thedrivin means, an inclined guide for re ceiving an conducting the stapleby gravity to the driving -mechanism, and a magnet disposed o posite thelower end of the inclined gui e, whereby the head-end of the pointsthereof be attracted to and held in a a staple forming and driving ma-lvertical position to be acted upon by the4 driving means.

5. In a stapling machine, the combination with staple forming and drivinmechanism, of a guide member provide with an inclined slot to receiveand deliver the staple by gravity, a vertical guide. for the staple andfor the driving mechanism, and a magnet exposed through the wall of thelatter guide to attract and holdl the staple inI a vertical positionwithin said guide.

6. In a stapling machine, the combination with mechamsm for driving asta le in an the head-end of a staple to a point above the drivingmechanism and in a position out of the vertical, and magnetic means forattracting the driving points of the sta le upwardly into position forupwardly riving.

7. In a stapling machine, the combination upwardly direction, of meansfor elivering.

with a staple driver, of a fixed guide for thel t GEORGE J. OLTSCH.'

` Witnesses A Trios. M. HARRISON, L. HUNSBEBGER.

whereof I aiiix my signature'

